微波波谱法研究水与有机/生物分子的分子配合物

摘要

Microwave spectroscopy is a kind of technique with high sensitivity and resolution for studying molecular dynamics and hyperfine structure of molecules,and could be applied in the areas of chemistry and physics.Some chemical and physical problems,which were difficult to unravel by other techniques,could be solved successfully by microwave spectroscopy.The researches of internal dynamics of complexes between water and organic/biologic molecules by microwave spectroscopy are reviewed in this paper.The forming of complex,structure,conformation,and internal dynamics of the complexes between water and organic chain molecules,aromatic ring molecules,organic compounds containing halogen and biomolecules are discussed in details.The dynamics of the proton donor or proton acceptor of water,typology of interaction,tunneling motions of the complex and conformation changes are introduced.It is illustrated that the internal motions of the partner molecule of water in the complex influences the tunneling features.Tunneling motions of water and organic molecules in the complex are related to the bond strength of the interaction and the symmetry involved in the water and partner molecules.Future trends of microwave spectroscopy are prospected.%微波波谱法是一种高灵敏度、高分辨率的研究分子系统内部动力学及超精细结构的方法,能解决许多其他方法难以解决的化学与物理领域具有挑战性的难题.本文综述了微波波谱法研究水分子与有机或生物分子形成分子配合物的内部动力学过程,详细讨论了不同类型的有机或生物分子与水分子形成的分子配合物,介绍了水在分子配合物中作为质子给体和质子受体的动力学,形成分子配合物后水分子和配体分子的隧道运动、结构和构象变化等动力学过程,并讨论了分子配合物中水分子和有机或生物分子的内部运动、相互作用键的强度、对称性影响隧道动力学特性.最后,展望了微波波谱法的发展方向.